Backpack



FIG. 1 is a front perspective view of the backpack, showing a configuration of my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The left side view of the backpack is simply a mirror image of the right side view of the backpack shown in FIG. 3.

The loop at the top of the backpack depicted by broken lines has been shown for the purpose of illustrating a portion of the backpack that forms no part of the claimed design. 

CLAIM The ornamental design for a backpack, as shown and described. 